fix login page to work on IE
[ATMO-605] Fix CSRF verification on logout.
	modified:   troposphere/views.py
Update requirements to use pypi.
	modified:   requirements.txt
Merge branch 'abyssinian-nightjar' of github.com:iPlantCollaborativeOpenSource/troposphere into abyssinian-nightjar
Merge branch 'master' of github.com:iPlantCollaborativeOpenSource/troposphere